[pinterest] sometimes not saving best quality - jpg when png is available

[Sey-81]

E:\Downloads>gallery-dl --verbose https://es.pinterest.com/pin/332281278752448615/
[gallery-dl][debug] Version 1.30.10
[gallery-dl][debug] Python 3.12.3 - Windows-10-10.0.19045-SP0
[gallery-dl][debug] requests 2.31.0 - urllib3 2.2.1
[gallery-dl][debug] Configuration Files ['%USERPROFILE%\\gallery-dl.conf']
[gallery-dl][debug] Starting DownloadJob for 'https://es.pinterest.com/pin/332281278752448615/'
[pinterest][debug] Using PinterestPinExtractor for 'https://es.pinterest.com/pin/332281278752448615/'
[urllib3.connectionpool][debug] Starting new HTTPS connection (1): es.pinterest.com:443
[urllib3.connectionpool][debug] https://es.pinterest.com:443 "GET /resource/PinResource/get/?data=%7B%22options%22%3A%7B%22id%22%3A%22332281278752448615%22%2C%22field_set_key%22%3A%22detailed%22%7D%7D&source_url= HTTP/1.1" 200 None
.\gallery-dl\pinterest\pinterest_332281278752448615.jpg

gallery-dl saved https://i.pinimg.com/originals/4b/bd/62/4bbd62f9e2fc180c9cd9a6f1433d5f4a.jpg
but https://i.pinimg.com/originals/79/20/2d/79202d4167b3ef3b97697d9ecc126c0d.png a considerably larger png version actually exists, surprisingly.
I have yet to find more images where this happens, it seems rare for pinterest to have png.

[mikf]

How/where did you find the .png file URL and hash?

I only get the smaller .jpg file on the website itself and the API response does not include any reference to .png or the 79202d4167b3ef3b97697d9ecc126c0d hash.

[Sey-81]

ah, sorry. originally, I was reverse image searching the image with yandex and yandex showed it under its "in other sizes" tab. no idea how yandex even got that though...

from smallest to largest these are

https://i.pinimg.com/170x/4b/bd/62/4bbd62f9e2fc180c9cd9a6f1433d5f4a.jpg
https://i.pinimg.com/236x/4b/bd/62/4bbd62f9e2fc180c9cd9a6f1433d5f4a.jpg
https://i.pinimg.com/280x280_RS/00/4b/3f/004b3fce74af56d06e23a9b1e65b4bc8.jpg
https://i.pinimg.com/474x/4b/bd/62/4bbd62f9e2fc180c9cd9a6f1433d5f4a.jpg
https://i.pinimg.com/736x/79/20/2d/79202d4167b3ef3b97697d9ecc126c0d.jpg
https://i.pinimg.com/736x/4b/bd/62/4bbd62f9e2fc180c9cd9a6f1433d5f4a.jpg
https://i.pinimg.com/originals/4b/bd/62/4bbd62f9e2fc180c9cd9a6f1433d5f4a.jpg
https://i.pinimg.com/originals/79/20/2d/79202d4167b3ef3b97697d9ecc126c0d.png
notably, a smaller image exists under the same hash as the largest one.

when I open the network tab in my browser and load https://es.pinterest.com/pin/332281278752448615/, I can find the hash of the highest res one

I was trying to see if gallery-dl could see the other hash with -g, but noticed it only puts out 1 image url/doesnt have fallbacks like #8081 mentions, I'm not sure if it has anything to do with this situation though.

I've been able to find another png image on pinterest, though interestingly this one downloads as png too through gallery-dl https://es.pinterest.com/pin/28710516369767860/. it probably managed to download since the hash is the same between the preview and full one.